The Zephyr™ sensors offer bidirectional flow sensing capabilities that eliminate the need to have two sensors to detect airflow in both directions, helping to reduce production costs and implementation time. These devices are insensitive to mounting orientation which is important for applications where one has to mount the sensor in a space-constrained area. This feature allows customers to position the sensor in the optimal point in the system, and also eliminates concern for positional effects. These sensors are insensitive to altitude, which eliminates customer-implemented altitude adjustments in the system, eases integration, and reduces production costs by not having to purchase additional sensors for altitude adjustments. These sensors are quite small, reducing the amount of space they occupy on the PC board, easing fit and potentially reducing production costs. And lastly, these devices are RoHS compliant.